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Chemical Sampling Information (CSI)
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General Description

Synonyms: Boroethane; Diboron hexahydride

OSHA IMIS Code Number: 0862

Chemical Abstracts Service (CAS) Registry Number: 19287-45-7

NIOSH Registry of Toxic Effects of Chemical Substances (RTECS) Identification Number: HQ9275000

Department of Transportation Regulation Number (49 CFR 172.101) and Guide: 1911 18

Chemical Description and Physical Properties:
Colorless gas with a repulsive, sweet odor.
molecular weight: 28
boiling point: -134°F
vapor pressure: >1 atm
melting point: -265°F
Incompatibilities: Air, halogenated compounds, aluminum, lithium, active metals, oxidized surfaces

Exposure Limits

OSHA Permissible Exposure Limit (PEL):
General Industry: 0.1 ppm, 0.1 mg/m3

Construction Industry: 0.1 ppm, 0.1 mg/m3 TWA
American Conference of Governmental Industrial Hygienists (ACGIH) Threshold Limit Value (TLV): 0.1 ppm, 0.11 mg/m3 TWA

National Institute for Occupational Safety and Health (NIOSH) Recommended Exposure Limit (REL): 0.1 ppm TWA

Health Factors

Potential Symptoms: Tight chest, precordial pain, shortness of breath, nonproductive cough; nausea; headaches; lightheadedness, vertigo; chills, fever; fatigue, weakness; tremors, muscle fasciculation. In animals: liver, kidney damage; pulmonary edema; hemorrhage

Health Effects: Acute respiratory damage (HE11); Nervous system damage (HE7) Irritation-Eye---Marked (HE14)

Affected Organs: Respiratory system, CNS

NIOSH/OSHA/DOE Health Guideline: Diborane

Monitoring Methods used by OSHA

Primary Laboratory Sampling/Analytical Method (SLC1):
  • sampling media: Fluoropore Filter in series with Charcoal tube [Type 580-20 (Barnebey-Cheney) impregnated charcoal, (100/50 mg sections)]
    maximum volume: 260 Liters
    minimum volume:     120 Liters
    maximum flow rate: 1.0 L/min
    current analytical method: analytical method 1: Inductively Coupled Plasma; ICP/DCP-AES
    method reference: 1 NIOSH 6006 [21 KB PDF, 4 pages]
    method classification: Not Validated
Secondary Laboratory Sampling/Analytical Method (SAM2):
  • device: Detector Tube
    company:     Draeger
    part #: 67 18101
    range:     0.05-3 ppm
    method classification: Mfg
  • device: Detector Tube
    company:     MSA
    part #: Reagent 82099, Filter 82388
    range:     0.1-3.0 ppm
    method classification: Mfg
  • device: Instrumentation
    company: Infrared Spectrophotometer
    part #: MIRAN 1A & 1B
    range:     0.6 ppm @ 3.8 um
    method classification: Mfg
Wipe Sampling Method: No

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